Processing unit for multiplying two mathematical quantities incl

Details Processing unit for multiplying two mathematical quantities incl Processing unit for multiplying two mathematical quantities incl

1980-03-24

1982-10-12

Malzahn, David H.

Boots, shoes, and leggings

G06F 752

Patent

active

043542492

ABSTRACT:
The processing unit includes at least one complex multiplier having hour multiplying circuits for multiplying the real and imaginary components of two complex vectors and combining the products to produce a complex output vector. Representing the input complex vectors by (A+jB) and (C+jD) the output complex vector becomes (AC-BD)+j(BC+AD). The combining circuits can be switched so that one of the input complex vectors is conjugated and the output complex vector becomes (AC+BD)+j(BC-AD). Thus, the present processing unit can provide the dot product of two complex vectors or the like.

REFERENCES:
patent: 3800130 (1974-03-01), Martinson et al.
patent: 3803390 (1974-04-01), Schaepman
patent: 3926367 (1975-12-01), Bond et al.
patent: 4086657 (1978-04-01), Gaskill, Jr. et al.
patent: 4202039 (1980-05-01), Epenoy et al.

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